Alvarion SW VERSION 5.1 Manual De Usuario

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Chapter 4 - Operation and Administration 
 
BreezeACCESS VL System Manual
 
166 
4.2.6.4 Bridge 
Parameters 
The Bridge Parameters menu provides a series of parameter sets that enables 
configuring parameters such as control and filtering options for broadcast 
transmissions, VLAN support, and Type of Service prioritization. 
The Bridge Parameters menu includes the following options: 
„ 
VLAN Support 
„ 
Ethernet Broadcast Filtering (SU only) 
„ 
Ethernet Broadcast/Multicast Limiter 
„ 
Bridge Aging Time 
„ 
Roaming Option (SU only) 
„ 
Broadcast/Multicast Relaying (AU only) 
„ 
Unicast Relaying (AU only) 
„ 
MAC Address List (AU only) 
4.2.6.4.1  VLAN Support 
The VLAN Support menu enables defining the parameters related to the IEEE 
802.1Q compliant VLAN aware (Virtual LAN aware) feature of the units. Each 
VLAN includes stations that can communicate with each other, but cannot 
communicate with stations belonging to different VLANs. The VLAN feature also 
provides the ability to set traffic priorities for transmission of certain frames. The 
information related to the VLAN is included in the VLAN Tag Header, which is 
inserted in each frame between the MAC header and the data. VLAN 
implementation in BreezeACCESS VL units supports frame routing by port 
information, whereby each port is connected to only one VLAN. 
The system also supports the 802.1 QinQ standard, which defines the way to 
have 2 VLAN tags (double-tagged frames). This procedure allows an additional 
VLAN tag, called Service Provider VLAN tag, to be inserted into an existing 
IEEE 802.1Q tagged Ethernet frame. This is a solution to transport multiple 
customers’ VLANs across the service provider’s network without interfering with 
each other. 
The VLAN Support menu includes the following parameters: 
„ 
VLAN Link Type